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  4. CVE 2026 59985 openexr heap out of bounds read in openexrcore
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Back to active CVEs
Medium · CVSS 5.5CVE-2026-59985

OpenEXR: Heap out-of-bounds read in OpenEXRCore RLE decoding on ILP32CVE-2026-59985

Answer in brief

CVE-2026-59985 records a Medium severity (CVSS 5.5) vulnerability in OpenEXR: Heap out-of-bounds read in OpenEXRCore RLE decoding on ILP32. The current sources do not mark it as known exploited. The current feed maps AcademySoftwareFoundation/openexr (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 25, 2026Updated Sep 9, 2026Source checked Oct 9, 2026First seen by HOL Aug 25, 2026Material review Sep 9, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps AcademySoftwareFoundation/openexr (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
AcademySoftwareFoundation/openexrgeneric>=3.2.0 <3.2.11 || >=3.3.0 <3.3.13 || >=3.4.0 <3.4.143.2.11, 3.3.13, 3.4.14

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for AcademySoftwareFoundation/openexr.
  2. 2Review the reported fix. Update AcademySoftwareFoundation/openexr to 3.2.11 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 25, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 25, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.2.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to a heap out-of-bounds read. The issue occurs when a crafted RLE-compressed EXR causes the 64-bit unpacked size to truncate before allocation in OpenEXRCore decoding.c and unpack_32bit() reads beyond the resulting buffer, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • MariaDB: `qc_info` plugin can do OOB reads if query contains \0Also CWE-125
  • MariaDB: mysql_json plugin OOB readsAlso CWE-125
  • RIOT: nanoCoAP Block2 client slice handling underflows on inconsistent server-controlled block sizeAlso CWE-125
  • RIOT: Out-of-Bounds Read in RIOT OS 6LoWPAN SFF Fragment HandlingAlso CWE-125
  • MariaDB: environment injection via wsrep bootstrap in the mariadb.service fileSame generic ecosystem
  • MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verification failureSame generic ecosystem

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Oct 9, 2026
References
4 linked sources
Open source record